Line casting machine



Oct. 2 0, i936.

L.. M. WALDEN LINEv CASTING MACHINE Filed June 7, 1934 INVENTOR v 55m-,Q M, WqLaf/v W6 V AT1-0R Y Patented oct'. 2o, 1936 UNITED STATES PATENTOFFICE 2,058,195 LINE CASTING 'MACHINE Lester M. Walden, New York, N.Y., assignor to Teletype Corporation, Chicago, Ill., a corporation ofDelaware Application June 7, 1934, Serial No. 729,348

Claims. (Cl. 199-24) The present invention relates generally to linethepresent invention, a preferred embodiment casting and composing machinesand more parhas been illustrated in the accompanying drawing ticularlyto automatic control apparatus that is which has been applied to anautomatic control adapted to be used in conjunction with such maunitsuch as the one more fully illustrated and 5 chines for controlling thecomposing and lineset forth in copending application Serial No. 5'

casting functions thereof. 600,606, filed rMarch 23, 1932 in which thereis This invention in its preferred embodiment has provided a recordreader mechanism which obapplication to commercially standard structurestains its operating power from the driving source of linecasting andcomposing machines that are conventionally provided with commercialtypes provided with matrix storage magazines each havof linecastingmachines, to be referred to herein- 10' ing a plurality of channelsadapted to receive after generally as the principal machines. In certainquantities of character bearing matrices. accordance with this type ofstructure, a power In accordance with conventional practices, thetake-olf mechanism is provided having tributary length of these channelsis limited so that but a thereto a pair of driving branches one of whichmaximum quantity of matrices may be received operates to actuate theseveral elements of the 15 within each channel, which ordinarily vmay berecord reader mechanism and its associated meample for line compositionrequirements, but chanical selector and another of which operates whenused in conjunctionwith automatic control periodically to actuate anelevator raising mechadevices and particularly in the case of certainfrenism for delivering assembled lines of matrices quently usedmatrices, the quantity of such matfrom a lower level where the matricesare assem- 2d rices that may be supported within these channels bledduring line composition to an upper level at may be inadequate forsupplying a machine in the which they are removed to be carried to aslug course of certain line composition. casting chamber associated withthe principal `Among the characters whose occurrence in or machine.dinary text is such as to exceed the supply that A perforated tapepreviously prepared contains 2'5 m'ay be availed of in the capacity ofbut a single successively transverse rows of perforations each channel,the most frequently depleted is the letof which corresponds to acharacter to be comter e, though in certain classes of line composed orto a collateral function which is to be position, other characters maybe equally affected. controlled in the performance of the linecasting 3oTo compensate for this inadequacy, it has been machine. After apredetermined number of 30A the practice heretofore to allot pluralitiesof character selecting perforations, one such'funcchannels for thepurpose of storing those certain tion perforation follows which isadapted to inicharacters having frequent occurrence during line tiatethe performance of the elevator operating composition, while theremaining characters mechanism. Coincident with the operation of havethe conventional accommodation of but a the elevator, the record readermechanism is 35 single channel for each class or character ofmamomentarily arrested by the interruption from trix. It has been knownheretofore accordingly rotation of its driving branch, during whichtime, that where pluralities of channels are employed the driving branchassociated with the elevator for housing similar matrices, means may beprooperating mechanism is initiated into perform- 40 vided for manuallyassociating matrix release apance. After the elevator has completed itsde- 40 paratus with each of said pluralities of channels liveryoperation, the driving branches are rein accordance withapredeterminedsuccession so stored to their original condition, that is, the as todraw from the supply of each channel and tov record reader operatingbranch is started into avoid depleting any one of the channels whichOperation and the eleVaJOI' Operating branch bemight produce a failureof response during a sub- COmeS inactive. f 4'5 sequent matrix releaseoperation, because no mat- T0 regulate the associative COI1tr01 0f thetwo rices are available in the associated supply chanaforementioneddriving branCheS, there ie pronel. vided an intercontrol device whereby,during the It is accordingly a salient object of the presentvperformance of each of the branches, the other invention to provide amechanism that is auto is disabled. This intercontrol device describes5o matically and periodically responsive to the sua short movementcoincident with each elevator pervision of an automatic control unit forassoperformance and in C0r101011ir1g the operation of ciating a commonmatix release mechanism with the mechanism more particularly relating tothe each of a plurality of matrix channels. present invention, thismovement of the inter- In carrying out the above and other objects ofcontrol device is utilized. This motion is recip- 55.

rocal, and is transmitted through a leverage system by means of a pawlwhich causes to be rotated a ratchet wheel and shaft associatedtherewith. A cam carried by said shaft is provided with a plurality ofapices or high points and nadirs or low points which present themselvesalternately and during successive cycles.

A lever responds to this reciprocal motion throughsuitable linkageand isconnected with a carriage that supports a plurality of horizontallyshiftable release reeds that are capable, during each presentment, ofbeing associated with a corresponding one of a plurality of adjacentfmatrix channels. In this manner the successive elevator operationsbeing representative Ioi -correspending performances oflinecompos'ition, are caused to shift the release mechanism of certaincharacters to be associated with various -ones of `a plurality ofchannels.

For a better understanding of the present invention, reference should behad-to the accompanying drawing and to the following description whereinlike reference characters designate similar parts throughout.

A tape sensing mechanism, generally referred to as a record reader, isindicated by the reference characterY M. 'This device lresponds totransverse rows of perforations in'a tape I2 and accordingly causes tobe positioned ya set of code bars 13. For each condition of the `severalvcode bars, a function performing element is placed into selectivecondition. Among several such elements one indicated i4 is delegated tothe function -of initiating the performance of the matrix assemblyelevator operating mechanism. Upon being selected, it is moved forward(towards the observer as illustrated in the accompanying iigure), and inso doing, rotatesa three-armed lever l5 in a counterclockwise direction.To lone of the arms of lever l5 is connected a latch bar I-6 and `to thelatter is pivotally articulated at .lil oneend of aoating lever 18. Theopposite' end I9 of lever I8 is-supported-between a pair of forkedelements integrally formed with .a :connecting rod 211, the opposite end:of which is,piv otedat `22 to aidepending arm rof afcradle member v23which rocks about a horizontally supported shaft 24.

Another arm 25 of cradle `member23 :extends downwardly and leftwardly,as 4viewed in this figure, and 'is -shaped arcuately and .providesinwardly thereof a Vshort radius section 26 .and :a somewhat longerradius section 21. IIn cooperation with these sections there issupportedV a camming lever 28, the depending portion V29 Yof which risprovided with 'a beveled sectionV which engages the .surfaces 25 Yand 21in accordance with the position of lever '2.8. A spring 3D `tends tomaintain the follower roller 31| :of lever .28 in constant Iengagementwith a delivery slide arm 32. Following the raising of the assembling.

elevator when the' latter attains the fline delivery .slide level, slideYarm :32, rocking counterclockwise in a well-known manner, together.with the movement of the line delivery slide, rotates about its pivot33, withdrawing its surface from engagement with roller 3l andpermitting a spring 34, connected to a cooperating bail 35, to urgelever 28 also in a counterclockwise direction about its pivot 31.

In so doing, the beveled surface 29 is withdrawn yfrom engagement with:short radius surface 2.6 and presented oppositelong radius surface 21.This permits cradle member 23 to be rotated clockwise as is its`tendency to do under the influence of a spring 3S which urgesconnecting rod 2| leftwardly.

The utility of floating lever i8 and its cooperation through connectingrod 2l and cradle 23 as an intercontrol device between the record readermechanism Il and the delivery slide arm 32 is well known and forms thesubject matter of a copending application Serial No. 600,606, filedMarch 23, 1932 mentioned above. Because of its Ifrequency of operation,it is particularly adapted to initiate the performance oi the mechanismconstituting the present invention and zabout to be described. Forpurposes of understanding the present invention, suiiice it to say thatthe aforedescribed reciprocal movement of lever 28 Icoincides with eachelevator operation which 'in turn corresponds with the assembling anddelivery of each group of matrices that is composed for the purpose ofcasting a line slug.

Integrally formed with cooperating bail 35 is an,.upstanding arm 38 towhich ,is connected a pawl 39, spring urged to engage the teeth of Varatchet wheel 4l, while a latch pawl 40 pivoted to a. stationary part ofthe machine also engages the teeth of wheel 4l. In accordance with theparticular illustration, ratchet wheel 4l is provided with eight ratchetteeth in longitudinal alignment with eight corresponding positions on aquadrilateral cam 42. In other words, alternate teeth of wheel 4lcoincide with associated apices-43 and nadirs 44 oi cam 42.

A lever 45, pivoted at 46 is provided with a depending arm 41 having aprojecting portion that is urged by a spring 48 to engage the peripheryof cam 42. The opposite or upstanding arm of lever 45 is connected as at49 to a spring 5|, which in turn is secured to a lug 52 integrallyformed with a horizontally slidable bar 53. As the cam 42 is rotated, itpresents alternately an apex '43 and a nadir 44 to the projection ofdepending portion 41 of lever 45.

This causes lever 45 to reciprocate coincident with each actuation bypawl v39 of wheel 4| and cam 42 and accordingly to impart a similar`movement to bar 53, spring 5| acting as a resilient element to Yprevent`possible rupture lthat might otherwise result if the movement of bar 53were impaired and it could not respond to the urge of lever 45.

Throughout its length, bar 53 is provided with notches l54 within whichreside individual release reeds '55 -free to verticalmovement that maybe imparted thereto through the escapement mechanisms 56 that aretripped by the weight bars 51 under the actuation 4of levers 58which maybe controlled either manually by` means of key tops 59 -or automaticallythrough the agency of the bell crank levers 6|, as described in thecopending application referred to above.

When bar 53 is moved horizontally, it `:accordingly shifts reeds intoeither of .alternative positions as .indicated in solid and brokenlines, during which vthe reeds .55 are eachk permitted Ato registerWithone or the other of a pair of cooperating reeds y62 `and 63 withwhich eachshiftable reed 55 is associated. Cooperating reeds 62 and -63:control escapement elements `64 of ad.

joining matrix channels 55. During the association of Ya Imainoperating. reed 55 with its cooperating reed V(i2, the selectiveoperation thereofY -causes to be released matrices from one of theadjacent channels 65, while during the association lthereof with thevother vcooperating reed 63` there may be effected the release .ofmatrices fromfthe adjoininnggchannel 65. Since the shirting leveroperates to shift reeds 55 coincident with consecutive elevatoroperations, matrices from adjoining channel are alternately released inaccordance with successive lines of composition. This permits of alarger source of supply to be availed of under the control of a singlerelease reed 55.

When the matrices are released from their respective channels, they arepermitted to precipitate through individual chute chambers that arearranged in a collective chute 66, whence they are vcarried in awell-known manner to the assembling block in the course of linecomposition.

It should be understood that the association of the shift operatingmechanism forming one adaptation of the present invention may beassociated with other actuating devices than the one illustrated in theinstant case, namely, the elevator operating mechanism. Likewise, itshould be understood that numerous changes and modifications may be madewithout departing from the spirit or scope of the present invention. Forthis reason it is not intended to be limited to the details illustratedin the accompanying drawing nor to the language employed in theforegoing specification, but to be permitted instead a latitude ofinterpretation as indicated by the hereinafter appended claims.

What is claimed is:

l. In a linecasting and composing machine, a plurality of matrix releasemembers arranged in horizontal alignment, a release reed, means forshifting said reed so as to present it into registration with diverseones of said release members including a shifting lever, a matrixdelivery slide operating lever, means conditioned upon the movement ofsaid operating lever for imparting motion to said shifting lever, and anautomatic control apparatus for initiating the performance of saidoperating lever.

2. In a linecasting and composing machine, a composing mechanismincluding escapements, a plurality of release reeds shiftable intoalternate escapement actuating positions, an automatically operateddevice responsive to the code characters in a control form forselectively actuating said release reeds, a lever for controlling theoperative connection between a source of power and said device, a linedelivery slide arm for moving assembled matrices, and a member actuatedby said line delivery slide arm for operating said lever and forshifting said release reeds into alternative positions.

3. In a linecasting and composing machine, a plurality of matrix releaseescapements, a plurality of matrix release reeds for actuating saidescapements, a line delivery slide lever powery driven for movingassembled matrices horizontal- 1y, a follower lever controlled in itsmovement by the movement of said line delivery slide lever, a recordreader responsive to the code characters in a control form forselectively actuating said release reeds, a linkage supervised by saidfollower lever for controlling the operation of said record reader andmeans also actuated by said follower lever successively to shift saidrelease reeds to alternate matrix release escapements.

4. The combination set forth in claim 3, in which said linkage includesa floating lever responsive to the condition of said follower lever andto a signal received through said record reader for controlling theoperation of said record reader.

5. The combination set forth in claim 3 including a spring for urgingsaid follower lever into engagement With said line delivery slide lever,and a spring for urging the engagement of said shifting means with saidfollower lever.

LESTER M. WALDEN.

